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Operation
The 9A600 provides switching between the front panel interfaces (ANIMs). Figure
3-1 shows the trafÞc ßow of ATM cells in the 9A600. The following sections brießy
describe the functions of the i960 Processor, the ASICs, and how they relate to
ATM cell trafÞc ßow.
Phycsical
Connection
ATM CELLS
to Network
Provides management and
configuration interface for
the 9A600
Separates/assembles
cell header data
CELL HEADER INFORMATION
UTOPIA
ASICs
ATM CELLS
Provides translation between
the I/O ATM bidirectional data
and the TDM
SAR
Shared DRAM
To SMB-1 & 10
CPU
To Z-80 Processor
i960
Figure 3-1. 9A600 Block Diagram
Translates headers and provides
routing information to move ATM
cells out of the TDM
TDM
ROUTING INFORMATION
ASIC
Queue
ASICs
SARI
ASIC
Segments and reassembles
data into ATM cells
Chapter 3
DATA
DATA
3-1
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